On December 2, 1823, U.S. President James Monroe delivered a speech establishing American neutrality in future European conflicts. The policy became known as the Monroe Doctrine.
Though a much-discussed principle of American foreign policy, it was undermined by the Spanish-American War, and proved a dead letter as the U. S. entered World War I.
One reply on “Monroe Doctrine”
The Monroe Doctrine told Europe to stay out of the Americas lest they arouse our enmity. I don’t recall the exact wording, but the intent was not to keep the US out of foreign war but to keep Europe out of american ones.